| 摘要 |
<p>The present invention relates to a method and a system for blocking an attack in a mobile communication system to prevent a malicious attack to a terminal from a server in the mobile communication system including a long term evolution (LTE). According to an aspect of the present invention, the system comprises: a packet data network gateway (PGW) for creating a detachment notification message for a subscriber terminal to transmit the same to a network address translation (NAT) device, when a detachment request is recognized from the subscriber terminal; and a NAT device for (immediately) performing an action for detaching every session connected to the subscriber terminal, when the detachment notification message is received from the PGW, wherein the PGW can recognize the detachment request based on a delete bearer request message received from a mobility management entity (MME), and the detachment notification message may include an IP of the subscriber terminal.</p> |
